blob: 1d298e8edae020771ed2abf0275d250ddd494b67 [file] [log] [blame]
/*
* Copyright (c) 2023 Grinn
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT adi_ad559x
#include <zephyr/drivers/gpio.h>
#include <zephyr/kernel.h>
#include <zephyr/sys/byteorder.h>
#include <zephyr/drivers/mfd/ad559x.h>
#include "mfd_ad559x.h"
bool mfd_ad559x_has_pointer_byte_map(const struct device *dev)
{
const struct mfd_ad559x_config *config = dev->config;
return config->has_pointer_byte_map;
}
int mfd_ad559x_read_raw(const struct device *dev, uint8_t *val, size_t len)
{
struct mfd_ad559x_data *data = dev->data;
return data->transfer_function->read_raw(dev, val, len);
}
int mfd_ad559x_write_raw(const struct device *dev, uint8_t *val, size_t len)
{
struct mfd_ad559x_data *data = dev->data;
return data->transfer_function->write_raw(dev, val, len);
}
int mfd_ad559x_read_reg(const struct device *dev, uint8_t reg, uint8_t reg_data, uint16_t *val)
{
struct mfd_ad559x_data *data = dev->data;
return data->transfer_function->read_reg(dev, reg, reg_data, val);
}
int mfd_ad559x_write_reg(const struct device *dev, uint8_t reg, uint16_t val)
{
struct mfd_ad559x_data *data = dev->data;
return data->transfer_function->write_reg(dev, reg, val);
}
static int mfd_add559x_software_reset(const struct device *dev)
{
return mfd_ad559x_write_reg(dev, AD559X_REG_SOFTWARE_RESET,
AD559X_SOFTWARE_RESET_MAGIC_VAL);
}
static int mfd_ad559x_init(const struct device *dev)
{
const struct mfd_ad559x_config *config = dev->config;
int ret;
ret = config->bus_init(dev);
if (ret < 0) {
return ret;
}
if (!gpio_is_ready_dt(&config->reset_gpio)) {
return -ENODEV;
}
ret = gpio_pin_configure_dt(&config->reset_gpio, GPIO_OUTPUT_INACTIVE);
if (ret < 0) {
return ret;
}
ret = mfd_add559x_software_reset(dev);
if (ret < 0) {
return ret;
}
return 0;
}
#define MDF_AD559X_DEFINE_I2C_BUS(inst) \
.i2c = I2C_DT_SPEC_INST_GET(inst), .bus_init = mfd_ad559x_i2c_init, \
.has_pointer_byte_map = true
#define MDF_AD559X_DEFINE_SPI_BUS_FLAGS \
(SPI_WORD_SET(8) | SPI_TRANSFER_MSB | SPI_OP_MODE_MASTER | SPI_MODE_CPOL)
#define MDF_AD559X_DEFINE_SPI_BUS(inst) \
.spi = SPI_DT_SPEC_INST_GET(inst, MDF_AD559X_DEFINE_SPI_BUS_FLAGS, 0), \
.bus_init = mfd_ad559x_spi_init, .has_pointer_byte_map = false
#define MFD_AD559X_DEFINE_BUS(inst) \
COND_CODE_1(DT_INST_ON_BUS(inst, i2c), (MDF_AD559X_DEFINE_I2C_BUS(inst)), \
(MDF_AD559X_DEFINE_SPI_BUS(inst)))
#define MFD_AD559X_DEFINE(inst) \
static struct mfd_ad559x_data mfd_ad559x_data_##inst; \
static const struct mfd_ad559x_config mfd_ad559x_config_##inst = { \
.reset_gpio = GPIO_DT_SPEC_INST_GET(inst, reset_gpios), \
MFD_AD559X_DEFINE_BUS(inst), \
}; \
\
DEVICE_DT_INST_DEFINE(inst, mfd_ad559x_init, NULL, &mfd_ad559x_data_##inst, \
&mfd_ad559x_config_##inst, POST_KERNEL, CONFIG_MFD_INIT_PRIORITY, \
NULL);
DT_INST_FOREACH_STATUS_OKAY(MFD_AD559X_DEFINE);